Finishing machine



june 23, 1936. R, MONFORTE y. 2,45q,331

FINISHING MACHINE Filed June l2, 1955 rations upon a shoe.

Patented June 23, 1936 FINISYHING MACHINE Rocco Monforte, Saylesville, R. I.

Application June 12, 1935, Serial No. 26,123

7 Claims.

My invention relates to finishing machines for the soles and heels of shoes, and more particularly to the tools for -heating or burnishing the same. Y n

In this type of machine various tools, usually mounted upon a single shaft, are intermittently employed for performing various finishing ope- This occasional use of the burnishing tool makes it necessary to reheat the latter on each occasion, and to accomplish the heating step with speed. The heat is commonly generated by means of a lever impelled friction element manually moved into contact with the burnishing tool for the necessary period `to accomplish this purpose, and thereafter Withdrawn by a reversal of the lever.

Heretofore the means for elfecting this end hgs involved the employment of an unnecessaril delay and uncertainty of operation, as well as great initial cost, and expense of upkeep; and such parts have exposed the handof the operator to injury.

The essential objects of my invention are to overcome the defined disadvantages, and insure speed and certainty of action, facility of operation, safety to the operator, distributing the wear and compensating for the wear upon the frictional element, economy, and simplicity.v

Other and ancillary objects of my invention will hereinafter appear.

To the above recited and indicated ends essenl part of this specification,y

Figure 1 is a perspective View of mty invention embodied in a finishing machine with the operating parts shown in unlocked or running position in full lines, and in locked position in broken lines,

Figure 2, a longitudinal sectionV partially in plan elevation taken on line 2-2 of Figure 1, with the parts in locked position,

Figure 3, a. detailed perspective view of my device in running position looking in a direction opposite to that from which the View in Figure 1 was taken,

Figure 4, an enlarged fragmentary top plan View of the lower or forward end of the housing with the parts in substantially the position shown in Figure 1, and l Figure 5, a fragmentary View of the same showing the cooperating opposite slot.

large number of parts with resultant effort,V

Similar letters of reference indicate similar parts throughout rthe views. p

My device is shown in Figure 1 as carried by fr, V.

the projecting end of the frame tie rod 9 supy ported in the standards Il), only one being shown,

which standards also rotatably support the usual sectional arbor or driving shaft I I of a finishing machine. upon the arbor, includes a burnishing portion I4, and an adjacent annular shoulder portion I5.

A l tubular casing or housing Il includes; la closed rear end I9, and an open forward end 20, A lateral tubular extension or socket 2l integral with an intermediate portion of the'housing lis attached to the rod 9 by a threaded connection asiat 22. The casing is herein illustrated disposed at right angles to the burnishing tool, but downwardly inclined with relation thereto in a vertical plane, with its depressed forward end spaced from the tool.

Slidable in the housing is a friction element 24', composed of a ber, rubber, or other material suitable for generating heat when in operating contact with a rotary burnishing tool, and provided with a plurality of holes 25 arranged in a longitudinal series,V in this instance three in number.

A helical spring 2l in the casingk Il has its opposite ends abutting against the portionv I9 of the latter and the friction element 24 respectively, and acts as an expansion spring tourge said element towards the tool I3. *l

An arcuate guide slot 29 in the forward portion of the casing side or wall I8 extends gradually rearwardly and outwardly or laterally thereof, the lateral curvature being in a direction away from the socket 2l, and terminates at its outer end with a forwardly directed locking' notch or recess 30. In the present instance the slot bounds approximately a quadrant. f

In a diametrically opposite portion of the casing wall is formed a guide slot 33 cooperating with vthe slot 23 and of the same lengthand contour as the latter, but with its lateral curvature directed oppositely tor that of the first slot. The second slot terminates in a forwardly directed locking notch or recess 34 diametrically opposite the notch 30.

The metal burnishing tool I3; rigid A guide member' 35 comprises a locking pin 3l relatively to the front end of the friction element 24 that when the pin 31 rests in the locking notches 30 and 34 the end of said element is spaced from the tool I3, as shown in full lines in Figure 2, and this is the locked or inactive position of my device.

When it is desired to advance the element 24 into contact with the rotating burnishing tool I3 to heat the latter, the operator, standing in front of said tool, manually lifts or pushes the handle 38 out of the notches 30 and 34 and instantly the spring 21 impels the forward end face of the member 24 into contact with :the at periphery of the shoulder I5 of the too-l I3, as shown in broken lines in Figure 2, rsimultaneously moving the pin 31 forwardly in thearcuV ate slots 29 and 33 and thereby imparting a twist, spiral, or transversely arcuate motion to the advancing pin. In full lines in Figures 13, 4 and 5, the running position of the pin 31 is shown :intermediate the ends of the guide'slots under continuous pressure of thespring.

When .the burnishing operation is completed the operator, by a single diagonal thrust lof the palm of his hand against the handle 38 towards the rear of the casing .and laterally away from 'the socket 2|, returns the pin to its locked posirtion against the pressure of `the spring 21. The

direction and character of this thrusting movement prevents accidental `contact vof the hand :with the :machine frame.

One result of the :rotary `or circular character of the advance of the Ifrictional element 124 is that'as the ypin 31 .gradually approaches the forward ends of the guide slots the end -face of the element 24 turns to present a comparatively new point of contact with the surface of the .-tool, thus distributing the Wearing `area of the former Within the limits permitted by the arcuate slots 29 and 33, and consequently the degree of wear upon the end face of the element 24.

When, however, the ultimate wear upon the :end of the element 24 is such that the pin 31 reaches the forward limits :of the guide slots, fthe rod may be withdrawn from the lowermost.

-of the holes 25 and be snugly inserted in the next higher hole.

The described heating apparatus is simple in construction, easily assembled, and certain and 'speedy in action. No support auxiliary to the vusual tie rod of the machine is required to carry the casing I1. The danger and expense incident to Aexposed and complicated mechanical parts prevalent in earlier structures are absent.

Vand slidable in the slot, and a handle upon the end of the pin.

3. A heater comprising a casing provided with a spiral guide slot terminating at one end in a notch, a friction element adapted for' engagement with a movable tool, said element being vadapted to slide in the casing, resilient means adapted to impel thev element against the tool, a locking pin engaging said element slidable in the slot and registerable in the notch,V and a .handle upon the pin. A

4. A heater comprising a casing provided at one end with a .curved guide slot one end of said slot terminating in a notch, ya friction element adapted for engagement with a movable tool, said element being longitudinally slidab'le in the casing and provided with a plurality of holes disposed in longitudinal series, resilient means in the casing for actuating the friction element, a locking pin in one of the holes slidable in the slot and registerable in the notch, and a handle upon the pin.

5. A heater comprising Ya casing provided at one end with a spiral guide slot, said slot terminating in a locking notch, a second slot and lockingnotch diametrically opposite to the abqve mentioned slot and notch, a friction element adapted for engagement with a moving tool and y.

slidably mounted Vin the casing, a spring in the casing for advancing the element to the tool,v a locking pin in said element slidable in the slots and registerable in the notches, land af handle upon the pin.

6. A heater comprising a casing provided with a guide slot terminating at o-ne end in a locking notch, a friction-element adapted to engagement with a movable tool, said Yelement being adapted to longitudinally slide in the casing, resilient means in the casing for impelling the element against the tool, a locking pin in said element Yslidable in the slot and registerable in the notch, and a handle on the pin.

'7. In a finishing machine, a tie rod, an elonvand registerable in the notches, and a handle Yupon the pin.

ROCCO MONFYORTE. 

